Smithwick South Dakota Climate Data

Monthly Average Climate Data for Smithwick South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.0 °F37.8 °F0.4 in.
February14.7 °F40.7 °F0.57 in.
March23.2 °F51.3 °F1.01 in.
April31.4 °F59.7 °F1.96 in.
May42.3 °F68.9 °F3.27 in.
June52.2 °F80.5 °F3.1 in.
July58.6 °F89.0 °F2.26 in.
August56.1 °F88.1 °F1.8 in.
September45.8 °F79.0 °F1.44 in.
October33.4 °F63.5 °F1.37 in.
November22.1 °F49.6 °F0.55 in.
December14.1 °F38.9 °F0.46 in.
Annual33.9 °F62.3 °F18.19 in.

Climate Data for Smithwick South Dakota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year